MyDAQ university project basic help needed

Hi,
I am looking to set up a myDAQ in Labview to take in audio waves, and control a vibration motor if a certain decibel limit is reached. I have used the daq assistant to manage an audio input and have this setup so voltages from a mic are read continuously. I don't really know what step to take next to control a vibration motor. Can anyone offer and guidance on what hardware I require and how to set up the software through labview?
Thank you kindly,
Olly

Dear ollyneedham,
Thank you for posting to the forums.
I wanted to get some further information from you.
What type and version of LabVIEW are you using? Do you have LabVIEW Base, Full, Professional or Development?
In regards to the audio waves you will take in, what range of frequencies are you looking at?
Use of the DAQ Assistant is a great start and I see you have already configured this to read voltages from the mic continuously.
The next step is to look at using the analogue input signals, with some boolean logic (for the threshold) and route this with a control algorithm. #
Is your motor a stepper motor or a DC brushless motor? Does it require a motor drive to run? Would you be able to post up the model and specifications of the motor?
Would you also be able to post up a diagram of the system you are creating?
You will need to use Digital I/O in order to create the control algorithm. This will be using the DAQmx driver.
Here are some links that will hopefully get you started in regards to controlling a motor using DAQmx.
- Turn on a DC Computer Fan using a Solid-State Relay, myDAQ, and LabVIEW
- control dc motor with mydaq
- Control Stepper Motor while Reading Encoder
- Studying Earthquakes With the myQuake NI miniSystem for NI myDAQ (Pioneer Release)
- DC Motor Controller using a Tachometer
- Pulse Width Modulation
- Digital Frequency
- Using SW-Timed Digital I/O to Control a Stepper Motor with DAQmx
- Motor Control with NI DAQ Motor Control System
- Two Plane Balancing Example with DAQmx
- Pulse Width Modulation (PWM) Using NI-DAQmx and LabVIEW
If you could let me know how you get on that would be great.
Kind Regards,
Dom C

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Project organization help needed

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Our initial idea was to organize our JCAPS projects as follows:
Outer Project (equivalent to eGate schema)
Inner Project (equivalent to eGate eWay)
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Inner Project for OTD's
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I would like to know how others have organized their systems interfaces, and any issues they may have come up with.
Thank You
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I would be wary of creating projects within projects.
The concept of project in JCAPS is nebulous.
Even though JCAPS allows you to nest projects within projects the nested projects are treated more like folders.
Like most other IDEs, projects are the ones created at root level.
Unlike most other IDEs JCAPS does not have the concept of project view and file view.
If you create an "Outer Project" and then inside it a bunch of "inner project" , JCAPS would treat the "Outer Project" as a project and all the inner projects as artifacts of this "Outer Project".
If any other project were to refer to any one of these "inner projects", then JCAPS will assume that this other project is dependent on the "outer project".
If you try to export this other project, it will export the whole "outer project" as a dependent project.
So, if possible, I would try to create all projects at root level especially if they are going to be referenced by other projects.
Use a flat structure rather than a hierarchical one. Use naming conventions to segregate and organize.
Instead of
ProjectA
ProjectA1
ProjectA2create
ProjectA_ProjectA1
ProjectA_ProjectA2
If this looks too cluttered you might want to consider branching to separate major projects
Also I would be careful of creating dependencies between projects.
Lets say you have a JCD which refers to an OTD in another shared project.
If somebody updates the OTD and creates a new version of the OTD, your JCD would automatically start referring to the new version.
Without your knowing a build will pick up the new OTD.
Of course if you know that a new version was created ,you can specify an older version of the OTD during a build.
Not so if you are editing the JCD. Here you will be stuck with the latest version.
This may or may not be what you want.
A better alternative would be to copy over the OTD to your project and use the local version.
Hope this helps.

Setting up a new Free Software Project, organizational help needed.

Hi
I need some help with a project I am working on.
I have been working on this project for some time now. I have written a program using JDK 6 and Eclipse.
The actual software is not the problem here. The actual problem, as I am starting to find out, is how to distribute this program.
I think I have organized the actual files incorrectly. Since I have been working on this program for some time now, its gotten a lot bigger then
I originally thought it would be. Also I have been using SVN and sourceforge, so I have been reluctent to make drastic changes to the layout of the
source code.
But I am starting to see that I need to adapt the source code to some standard if I am to either get other to help me or to release the program.
And here is where your help comes in.
I need to know how to organize my files.
I have organized the *.java files in a somewhat orderly fashion, but from what I understand most source code is organized into "src", "lib", ect folders.
This is what I need the help with.
My program uses some external jar files that contain some methods, functions and class I use.
I also have some images and icons used in the program.
There are also files that are created, written to and read from the program, which I need to keep.
What is the best way to organize these files and is there some sort of "standard of free software" out there?
I would appreciate any help on the matter.

Just a shot in the dark here...
Are you JARring your project when you make it into a binary? You can JAR it the same way with your source, as well. As for the folders that you are talking about, I'm not an Eclipse user, but doesn't the IDE organize your files into packages and such while you are working on a project?
My perspective comes from NetBeans. When I create a project, the IDE automatically creates an Ant file and also organizes the project into packages. For example, if I start a project called StripNewLines, my Main class will be located in a package called stripnewlines, which I can refactor later to something like net.mycompany.stripnewlines, for example. Then, when I need to include resources such as files or icons, I go into my file manager and simply create new folders under my project's source tree. For example, my project file tree may look something like:
+ StripNewLines/
+ dist/
+ lib/
+ StripNewLines.jar
+ README.TXT
+ src/
+net/
+ mycompany/
+ stripnewlines
+ Main.java
Once I get done adding my files and icons, it might look like this:
+ StripNewLines/
+ dist/
+ lib/
+ StripNewLines.jar
+ README.TXT
+ src/
+net/
+ mycompany/
+ stripnewlines/
+ Main.java
+ files/
+ LICENSE
+ README
+ art/
+ file-open.png
+ exit.png
+ new.png
Once I've added those files and icons to my file heirarchy in my file manager, NetBeans will automatically update the project and add the packages net.mycompany.files and net.mycompany.art. Then I just have to access them by their paths to use them in my application.
Once you've gotten your application completed and compile it to a jar file, you can drop to a shell and use the `jar` command to "pack up" your source tree. By doing it this way, you have a single file for download as a binary and another single file for download as a source archive. Obviously, if you are using libraries, you will need to zip up or tarchive your lib/ folder and JAR file for the distributions, so that your external libraries will also be available to your application on another machine.
Anyhow, just some thoughts. I do hope this helps you a little and doesn't confuse you more.
Cheers,
Sean Carrick
PekinSOFT Systems

Basic help needed very much

Hi,
I have an Epson 3800 printer and Adobe Elements 7 (Epson advised me that I should buy some version of Photoshop to take full advantage of the printers capabilities).....Problem is need basic info on how to set all the buttons to make a decent print. There are many,many choices on various drop down tabs all through the process of making a print. Also, It seems that all my pictures are 72 ppi ...is this a default setting ? Or, did I do something wrong when I downloaded them from my camera ? PLEASE help ! If at all possible someone could guide me through the process step by step I would be very, very grateful. I need guidance from the download, through the myriad of buttons (ie: color management, size selections (why do I have to tell both Elements and the printer the size of my paper?!!$#@) what's up with 72ppi on all my pics, if i change to 300 ppi wont pics get worse ? )
I called Epson and asked them to walk me through a print but they wouldnt because they said I'm going through Elements first and that is not their responsibility! BUT THEY ADVISED ME TO GET ELEMENTS IN THE FIRST PLACE !!!
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Thanks,
Frank

Frank, here's a couple links to tutorials that may help. They use Photoshop but the print settings in Elements are similar enough.
http://www.wonderhowto.com/how-to/video/how-to-print-from-photoshop-to-the-epson-stylus-pr o-3800-260408/
http://people.csail.mit.edu/ericchan/dp/Epson3800/printworkflow.html
As far as the resolution, stated in pixels per inch (ppi), the images from your camera have a fixed number of pixels, so resolution is determined by the size of the print...the larger the print, the larger the pixels, the lower the resolution. 300 ppi is considered optimum for printing...higher won't hurt, lower than 250 ppi may start to be noticable.

CSS11506 - Some basic help needed

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Thanks, that explains a few things.
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service rprox1
ip address 192.168.20.50
protocol tcp
port 8080
active
owner clee
content redirect_rule
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protocol tcp
port 8080
url "/*"
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Thanks again for the help
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Oracle Final Year Project Choice Help Needed

hi everyone,
I m Amir from Pakistan, I m a student of CS final year at a IT University powered by Govt.of pakistan.
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Thanks
Amir

Hi Amir,
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hi friendz and gurus!
i am doing a project on security and permissions
i have planned to use passwords for that purpose
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doing this for purpose of learning.
can somebody implementat the encryption algo of linux
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sparya
thanx in advance!

i have tried several combinations but couldn't get
success now it is scaring me so finally i want to see
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already frustated, that's why i asked only for code
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sparya

Inconsistant overlay issues in same project - urgent help needed please!

Hopefully this has not been asked. I searched and found nothing.
The issue is that using overlays works great for two of the three menus in my project, but the third does not display properly when viewing a finished DVD or the TS folder. It looks perfect in simulator.
Now for the details: the menus are pretty simple. They each consist of a Photoshop file with two layers. One is the background buttons (mostly plain text) and an overlay layer (underlines under the text). These are saved as psd files.
When built and viewed, two of the menus operate normally - you roll over the text buttons, and an underline appears beneath them. The third menu does nothing when rolled over, yet if you click on a piece of text, it jumps to the proper section as expected.
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Hi There
The only thing that comes to mind is that something's changing in your button highlight states between your menus. Go to a menu that is working the way you want and select a button. In the button inspector go to the Colours tab and ine the bottom right corner click the Save As Default button. Then go to a menu that is not performing correctly, highlight a button, go to the Colours tab and click Restore Default.
If that doesn't fix it at least you'll have ruled out a major culprit.
Good Luck
B

Basic Help needed with Hyperion 9.3 Scheduling jobs

Hi!
Is there anyone who would be willing to help a novice understand the Scheduling features in Hyperion 9.3? We are converting from Brio 6.6 where we used the "Broadcast Server". We don't yet have many jobs - so I'm not migrating them. But, the documentation with Hyperion is not helping me really understand how to set a job to actually do anything. I don't yet know how to add cycles and direct specific output to specific places. The jobs "run" and I've created events ...
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Jeanne Loehnis
[email protected]
920-832-6613

I agree about the documentation. It's not always easy to understand how to do something if your situation doesn't exactly match the examples. I had to use a lot of trial and error to finally get some jobs running.
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Julie Johnson
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Western Connecticut State University

To Physically Delete WBS in a Project- Urgent Help Needed

Hi,
In a process of physically Deleting WBS which contains other objects (network, activites) from a project , It requires us to cancel the Deletion Flag on the wbs .For this I am trying to use a Bapi BAPI_BUS2054_SET_STATUS,
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Can Someone suggest me other way to delete wbs permanently, the business logic we follow here is to delete only those wbs which are marked for deletion after certain period of time.
This is kind of urgent to me.. so any help is truly appreciated.
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If your wbs is not used, you can delete with the transaction CJ20N.

Basic Help Needed - Exporting

Hi everyone!
I am currently drawing a 1600X900 interface for a touchscreen system. I am using illustrator to make the buttons, but I have an issue. The touchscreen program will only upload buttons as an image (anything besides .png simply looks awful), so I need to export JUST certain images of certain buttons in illustrator. My question...
Is there a way to export a certain selection/object/layer in illustrator? I am currently running CS4. I know I can copy and paste each object onto a new print and export - but when the .png is uploaded it has a border (even if its translucent). Again, there are buttons so I need the full image and nothing else.
Also, for a more complicated question;
When I began the illustrator document, I chose 1600x900 pixels in hope that the buttons would appear smooth on the touchscreen program. Should I perhaps lower the pixels since the actual buttons may only take up a tiny fraction of the whole 1600x900 screen? I've never really imported my work into 3rd party programs - this is new to me.
Thanks so much!

Loading a plug-in, then exporting to layers...if there's a more simple solution, I'd certainly love to hear it.
Don't fear the plug-ins, they're here to help.
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SSH basics - help needed

I'm new to networking, so bear with me. Here is what I am trying to do:
I would like to get to websites that are blocked by a corporate firewall (websense). (I take full responsibility for what I am doing and am not putting myself at risk - don't worry).
It seems like I could use SSH to connect to my home internet connection thus bypassing the firewall.
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Here's my equipment - 2 Macbook Pros, one fuctioning as a desktop at home, one portable. Airport Extreme N router (not gigabit). Comcast home cable internet.
I just downloaded a program salled SSHTunnel that sounds like it should help, but I don't know where to start.

The easy route.
Use TeamViewer <http://teamviewer.com>. Leave TeamViewer running on your home Mac. It will display a "Wait for session ID". Copy that session ID number, and take it with you to work.
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This is the easiest way I know about.
The HARD WAY: You can do this via ssh, but there are a lot more detailed steps.
1st question. Does your company allow "Out-Bound" ssh connections? If it does, that helps a lot. If they DO NOT, then you would need to mess with an OpenSource program called "Corkscrew" that will get ssh through a proxy server.
Once you get through the firewall, then you will need to get a dynamic DNS name for your home system. No-IP.com and DynDNS.org offer free dynamic DNS names. You use this so you do not need to worry about your ISP changing your home IP address.
Now you need to configure your home router so it Forwards Port 22 from the internet side to your destination Mac.
On your destination Mac, you need to enable System Preferences -> Sharing -> Remote Login, and while you are at it, you should enable screen sharing preference.
Now on your work system, you ssh to your home system. The form of the command depends on whether you need to use corkscrew or not.
Without corkscrew:
ssh -L 5901:localhost:5900 [email protected]
With corkescrew:
ssh -L 5900:localhost:5900
-o 'ProxyCommand /path/to/corkscrew proxy.server.address 8080 %h %p'
[email protected]
Now you have an ssh tunnel which you can run screen sharing across. Using a VNC client. On a Mac you can use:
Finder -> Go -> Connect to server
vnc://localhost:5900
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Now you should be able to use your home Mac and its browser to surf anywhere you like.
If you wish to increase your complication, you could use ssh to create a SOCKS proxy. You would add the following to your ssh command:
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Hi all,
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When I bought my Cisco router I didn't know it had an ethernet port for WAN. I thought it would have a RJ11 compliant port. So now I am having to put the router behind my modem.
I gave my modem's LAN 192.168.2.1 and to RV120W I gave 192.168.2.2.
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If I enable PPTP on RV120W I can ping its port (1723 i remember) from outside. If I connect to port 80 from outside my network, I can get the managemnt interface of the RV120W.
With the help of the RV120W's userguide I managed to create VPN policy stuff via the 'basic VPN Setup' menu. The guides says to use a wizard but there is no wizard for VPN setup.
With that I have even created users (of every type) but I just can't make the connection.
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First... what I am I supposed to put in the fields of the following screenshot. Especially the fields "Remote WAN's IP Address", "Local WAN's IP Address" and "Local LAN IP Address".

Once I knew about the bridge mode thing from this discussion, I started reading the manual of the modem in regard to the brigde mode setup.
According to the manual, the 'Data' bulb on the modem would be off if the modem is in bridge mode. and I've successfully put the modem on bridge mode I guess. It was pretty easy. I just deleted all the WAN setup rules/configs and began with the initial setup wizard which basically had the option to set the modem to bridge mode. After so, the 'Data' bulb got off meaning the modem is now in bridge mode. I am happy about that
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I put one ethernet cable into of the LAN ports of the modem and put the other end in RV120W WAN port. Logged into to RV120W, configured new PPPoE profile (I have the user and pass details) and attached it to the WAN internet setup config.
I went back to the dashboard of RV120W to see if WAN was up. It didn't. I gave some time. It didn't work. It says 'connecting' but never connects.
What am I doing wrong? Am I putting the cable between the modem and router the right way?
...and also, when the modem is in bridge mode will it forward all packets from lan to wan and vice versa or is it like forwarding packets to all ports once recieved.
(I am learning so much with this RV120W )

Really basic help needed bouncing tracks to mp3

Hi
We have been working on some new music in MIDI format and really would like to have them available to play on our ipod. I have read the manual on bouncing to mp3 format. However I have 2 problems.
1) Some tracks don't even allow my to bounce to mp3. When I try to select file>Bounce, I cannot select it as it is not available and is the light grey colour of unavailable items.
2) The tracks that I have been able to bounce have no sound when I play them back in itunes or quicktime player.
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Hi and welcome to Logic Express,
First of all: Bouncing is usually done by bouncing from the Master Output Channel. You should see a small Bounce Button (Bnce) below the Fader (look to the left in the Inspector window - there are 2 Channel Strips. The Left is for the selected Track and the right one usually is the master Output (Out 1-2). Or you can select Bounce from the File Menu. Only Output Tracks can be bounced! You can't bounce individual tracks, but have to route them to an output. Usually, this routing is on by default, so if you didn't change it, it shouldn't worry you.
See if none of your tracks are muted and if you can actually play back the entire project and hear the desired result in Logic. If so, hit the bounce button below the master output (1-2) fader.
The second step is to select the right method of bouncing. There should be a popup menu now asking you about filename and so. Enter the desired filename and maybe another folder. If not, Logic names it Output 1-2.mp3, which isn't that bright. To the lower left, u should see some available file formats. Check mp3 (this is important!) first. Also select offline bounce, if not checked. Check if "normalise" is activated. If not, activate it.
Now, the options change to allow some mp3 specific tweaks. Use the ones you like. I use about 160kbits for stereo, normal stereo mode, and tweak all the ID3 Tags as desired. Also check "add to itunes library".
Now, before you bounce, check if the start and stop marks of the bounce are actually the same that you want them to be. Sometimes they snap to the last marked region, which isn't neccesarily the correct song length. I messed up some bounces before i got this right.
If everything looks good, hit bounce. Logic should bounce, normalize and convert to mp3 now. Wait some seconds for iTunes to get the song imported. There you are. If not, ask again
Fox

Basic help needed creating a trigger

I'm completely new to SQL programming altogether, and I'm trying to set up a trigger that will make some checks before adding a new row to a given table. I am trying to do this because I need to enforce a CONSTRAINT that checks whether the dates entered for 'deadline' and 'startDate' are greater than sysdate and less than (sysdate + 365), and I found out that you cannot reference sysdate from a CONSTRAINT. Therefore I am now attempting to do this using a trigger, but I don't really know how to do this. Here is the sql code used to create the table:
-- PLACEMENT TABLE
DROP TABLE placement;
CREATE TABLE placement
contactId Int,
placementId Int,
position VARCHAR(60),
description CLOB,
lengMonths Int,
salary Number(7,2),
deadline DATE,
startDate DATE,
addrLine1 VARCHAR(120),
postCd VARCHAR(10)
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CREATE OR REPLACE TRIGGER trg_deadline_low BEFORE INSERT OR UPDATE OF deadline ON placement
BEGIN
IF :deadline <= SYSDATE THEN
ROLLBACK;
END IF;
END;
CREATE OR REPLACE TRIGGER trg_deadline_high BEFORE INSERT OR UPDATE OF deadline ON placement
BEGIN
IF :deadline > SYSDATE + 365 THEN
ROLLBACK;
END IF;
END;
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Can anyone tell me why I am seeing this error when trying to implement the triggers? And if anyone could also improve on my amateur attempt at coding a trigger, then that would be great! Thanks for any help!

Oops!
Nicolas, Thank you for correcting my mistake.
SQL> edit
Wrote file afiedt.buf
1 CREATE TABLE placement
2 (
3 contactId Int,
4 placementId Int,
5 position VARCHAR(60),
6 description CLOB,
7 lengMonths Int,
8 salary Number(7,2),
9 deadline DATE check (deadline between sysdate and sysdate+365),
10 startDate DATE,
11 addrLine1 VARCHAR(120),
12 postCd VARCHAR(10)
13* )
SQL> /
deadline DATE check (deadline between sysdate and sysdate+365),
ERROR at line 9:
ORA-02436: date or system variable wrongly specified in CHECK constraint
SQL> edit
Wrote file afiedt.buf
1 CREATE TABLE placement
2 (
3 contactId Int,
4 placementId Int,
5 position VARCHAR(60),
6 description CLOB,
7 lengMonths Int,
8 salary Number(7,2),
9 deadline DATE check (deadline between to_date('2007-03-21','yyyy-mm-dd') and to_date('2008-03-21','yyyy-mm-dd')
10 startDate DATE,
11 addrLine1 VARCHAR(120),
12 postCd VARCHAR(10)
13* )
SQL> /
Table created.
On the contrary, I think that OP want an error instead of rollback : "I would like for these triggers to display an error rather than just using ROLLBACK"Ah, I had misread additionally. Sorry.

MyDAQ university project basic help needed

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